That's very sad to know. I have used a number of exchanges and in their terms of service or even KYC they ask one if they are a politically exposed person or not. Perhaps this is one of the reasons

Certain times those exchanges have no choice, Law enforcement goes after them to freeze specific accounts. Maybe because you were in the opposition, your Governments decided to make life hard for you by freezing all your accounts, and your Bitget account might have been one of them. Have you tried going through the legal route? Because the only way they can freeze your account under such circumstances is through a court order from Law enforcement or Government.